Document Detail

Novel phenomena in the 13C NMR spectra of amino acids.
MedLine Citation:
PMID:  15042448     Owner:  NLM     Status:  MEDLINE    
13C NMR integral areas and spin-lattice relaxation times (T1's) of a series of amino acids were determined at different concentrations. It was found that the spin-lattice relaxation times were markedly reduced in 3 M magnesium chloride resulting in the integral area being proportional to the number of carbon atoms producing each particular signal, with a reliability in excess of 95%. Magnesium chloride is proposed as a 13C NMR relaxation agent for amino acids.
J Tian; Y Yin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2003-11-20
Journal Detail:
Title:  Amino acids     Volume:  26     ISSN:  0939-4451     ISO Abbreviation:  Amino Acids     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2004-03-25     Completed Date:  2004-12-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9200312     Medline TA:  Amino Acids     Country:  Austria    
Other Details:
Languages:  eng     Pagination:  175-81     Citation Subset:  IM    
Department of Chemistry, 4F TH-UNIS Building II, Tsinghua University, Beijing 100084, P.R. China.
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MeSH Terms
Amino Acids / analysis*,  chemistry*
Carbon Isotopes
Magnetic Resonance Spectroscopy / methods*
Molecular Structure
Reg. No./Substance:
0/Amino Acids; 0/Carbon Isotopes

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